Sheet retaining device



June 16, 1936. p, O UNGER 2,044,138

SHEET RETAINING DEVICE Filed Feb. 14, 1934 INVENTOR. r 1 UL O. U/VGER A TTORNEY.

Patented June 16, 1936 UNITED STATES PATENT OFFICE SHEET RETAINING DEVICE Paul 0. Unger, Glen Ellyn, Ill., assignor to I Wilson-Jones Company, Chicago, Ill., a corporation of Massachusetts Application February 14, 1934, Serial No. 711,095

5 Claims. (Cl. 281-25) This invention relates to a sheet retaining demember. Although it is preferred to have the vice which includes means for holding a pluralends in of the base member bent against the ity of loose sheets in permanently bound relationcover because of the added security, it will be ship while allowing considerable freedom of understood that where such added security is not 5 movement to the individual sheets. necessary, the turned over ends l may be omit- It is an object of this invention to provide ted. The top cover 2 and the sheets 4 are free to simple and inexpensive means to bind a plurality turn on the prongs I so that the top cover may be of sheets together permanently. It is a further turned back against the bottom cover and any object of this invention to provide an economical sheet may be exposed for reading or writing withand eflicient method of permanently binding a out having the preceding sheets in the way. plurality of sheets. Other objects of this inven- In the embodiment illustrated in Figures 3 and tion will become apparent upon reading the fol- 4, the sheet retaining prongs II are formed seplowing description taken in conjunction with the arately from the base member I2 and are secured accompanying drawingln which thereto by means of a plurality of straps l3 struck Figure 1 is a perspective view of one embodiout fromthe base member, or in any other suit- 15 ment of the invention, with parts broken away able manner. In this embodiment, the sheet reto facilitate the illustration of the structure; taining prongs are preferablyformed of wire.

Figure 2 is a perspective view of the binding The base member I2 is provided with tongues 9, member of Figure 1 before the sheets and covers and may have its ends turned over the bottom are assembled thereon; cover, as indicated at to, Figure 1, if desired. 20

Figure 3 is a fragmentary perspective view of Although I have described a few preferred emenother embodiment f t v i n; and bodiments of my inventionin considerable detail,

ure 4 is a frag e y perspective view of it will be understood that the description thereof the rear S e Of the device illustrated in ure 3. is illustrative rather than restrictive, as many de- In the draw n t r f r n e numb s 2 and 3 tails may be modified or changed without depart- 25 d a a p r of v r m m s p s t d on ing from the spirit or scope of my invention. Ac- DD Sides f a plurality of 10058 Sheets cordingly, I do not desire to be restricted to the T e Sheets d Covers are flp d adjacent exact details described, except as limited by the one edge, as indicated at 5. appended claims. The binding member includes a base member 1 u 30 .6 and a plura y of integral Sheet retaining 1. In asheet retaining device,'a cover member,

prongs The binding member is blanked out of a plurality of sheets positioned adjacent said cover a single piece of thin sheet metal and is then member, a metal plate permanently secured to formed into the Shape illustrated in Figure the underside of said cover member, and a plu- The free ends 8 of the prong members are Pe rality of prongs each permanently fixed at one 35 at an angle to the curvature of the q portmns end to said metal plate and passing through said of i prongs for a purpose to be heremafter cover member and sheets, the opposite ends of scribed. The base member 6 is provided with a Said prongs being permanently positioned plurality of clinching tongues 9 that are prefertween said cover and 5 a1 d metal plate 40 ably struck out therefrom in the blanking opera- 2. In a sheet retaining device, a a of cover 40 tion members, a plurality of sheets positioned between d heets are im aled on the 35; $255 a bisnding memherpis in the com saidcover members, a metal plate permanently dmon illustrated in Figure The ends a of the secured to one of said cover members, and a pluprong members are bent to bring the ends 8 subh 0f p gs passing through aid sheets and 45 stantially into juxtaposition with the base mem- 594d cove! members, one end each o Se ber. The cover member 3 is held against the prongs being integral w Said P a t e prong ends 8 and is pressed over the tongues 9. other end of each prong being positioned between The tongues 9 and the ends ID of the base memsaid plate and the cover member to which the her are bent over against the inner surface of the plate is secured. 50 cover member 3. The cover member 3 is main- 3. In a sheet retaining device, a cover member, tained in position adjacent the ends 8 so that the a metal plate permanently secured to said cover cover member 3 is clinched securely against the member, a plurality of straps integral with said base member 6 and the ends 8 of the prongs are plate, and a plurality of wires carrying sheets im- 65 permanently held between the cover and the base paled thereon, said wires being secured at one end tioned between said metal plate and the cover member to which the plate is secured.

5. In a sheet retaining device, a pair of cover members, a metal plate permanently secured to the outer side of one of said cover members, a 5

plurality of prongs, and a. plurality of sheets impaled on said prongs between said cover members, one end of each prong being permanently secured to said plate, the other end of each prong being positioned between said plate and said cover mem- 10 her to which the plate is secured.

PAUL 0. U'NGER. 

